netdev - [PATCH net-next 2/2] selftests: drv-net: rss_ctx: make the test pass with few queues

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250829220712.327920-2-kuba@kernel.org>
Date: Fri, 29 Aug 2025 15:07:12 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
	edumazet@...gle.com,
	pabeni@...hat.com,
	andrew+netdev@...n.ch,
	horms@...nel.org,
	ecree.xilinx@...il.com,
	gal@...dia.com,
	joe@...a.to,
	linux-kselftest@...r.kernel.org,
	shuah@...nel.org,
	Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next 2/2] selftests: drv-net: rss_ctx: make the test pass with few queues

rss_ctx.test_rss_key_indir implicitly expects at least 5 queues,
as it checks that the traffic on first 2 queues is lower than
the remaining queues when we use all queues. Special case fewer
queues.

Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
 tools/testing/selftests/drivers/net/hw/rss_ctx.py | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/drivers/net/hw/rss_ctx.py b/tools/testing/selftests/drivers/net/hw/rss_ctx.py
index 3fc5688605b5..4fa8c7f198a8 100755
--- a/tools/testing/selftests/drivers/net/hw/rss_ctx.py
+++ b/tools/testing/selftests/drivers/net/hw/rss_ctx.py
@@ -178,8 +178,13 @@ from lib.py import ethtool, ip, defer, GenerateTraffic, CmdExitFailure
     cnts = _get_rx_cnts(cfg)
     GenerateTraffic(cfg).wait_pkts_and_stop(20000)
     cnts = _get_rx_cnts(cfg, prev=cnts)
-    # First two queues get less traffic than all the rest
-    ksft_lt(sum(cnts[:2]), sum(cnts[2:]), "traffic distributed: " + str(cnts))
+    if qcnt > 4:
+        # First two queues get less traffic than all the rest
+        ksft_lt(sum(cnts[:2]), sum(cnts[2:]),
+                "traffic distributed: " + str(cnts))
+    else:
+        # When queue count is low make sure third queue got significant pkts
+        ksft_ge(cnts[2], 3500, "traffic distributed: " + str(cnts))
 
 
 def test_rss_queue_reconfigure(cfg, main_ctx=True):
-- 
2.51.0